When is it useful to have replication or fragmentation of data? Explain your answer.
Answer to relevant QuestionsExplain the notions of transparency and autonomy. Why are these notions desirable from a human-factors standpoint?Give an example where the read one, write all available approach leads to an erroneous state.Consider the relations employee (name, address, salary plant-number) machine (machine-number, type plant-number) Assume that the employee relation is fragmented horizontally by plant-number, and that each fragment is stored ...What form of parallelism (interquery, interoperation, or intraoperation) is likely to be the most important for each of the following tasks?a. Increasing the throughput of a system with many small queriesb. Increasing the ...List some benefits and drawbacks of connectionless protocols over protocols that maintain connections
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